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Analysis
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max time kernel
148s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
11/09/2024, 07:46
Static task
static1
Behavioral task
behavioral1
Sample
77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45.exe
Resource
win7-20240903-en
General
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Target
77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45.exe
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Size
315KB
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MD5
7aeff9892ee049121e8f5a0c6aa60a4d
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SHA1
72c9ffc93f18188bce98199beb7d633c5c068760
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SHA256
77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45
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SHA512
095e43d09b8b9a6c226b395996836dec534f08cb06e8752fa38894b237be04728bd3a16dd39530b9f889e3f08bc20e5fe08e19e73dd0ec4eedc868c1e572bf71
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SSDEEP
6144:NR0V8L/ZlOKdgoHRECFE8jqL/QaMylHFTquQTdJLq:NY8L/ZYKd/eL/0QHwhdJLq
Malware Config
Extracted
gcleaner
80.66.75.114
45.91.200.135
Signatures
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Downloads MZ/PE file
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation 77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 10 IoCs
pid pid_target Process procid_target 2148 540 WerFault.exe 82 4292 540 WerFault.exe 82 1432 540 WerFault.exe 82 3980 540 WerFault.exe 82 3300 540 WerFault.exe 82 1200 540 WerFault.exe 82 2256 540 WerFault.exe 82 3284 540 WerFault.exe 82 3804 540 WerFault.exe 82 4396 540 WerFault.exe 82 -
System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language cmd.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language taskkill.exe -
Kills process with taskkill 1 IoCs
pid Process 3264 taskkill.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3264 taskkill.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 540 wrote to memory of 3988 540 77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45.exe 114 PID 540 wrote to memory of 3988 540 77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45.exe 114 PID 540 wrote to memory of 3988 540 77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45.exe 114 PID 3988 wrote to memory of 3264 3988 cmd.exe 118 PID 3988 wrote to memory of 3264 3988 cmd.exe 118 PID 3988 wrote to memory of 3264 3988 cmd.exe 118
Processes
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C:\Users\Admin\AppData\Local\Temp\77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45.exe"C:\Users\Admin\AppData\Local\Temp\77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45.exe"1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:540 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 540 -s 4442⤵
- Program crash
PID:2148
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 540 -s 7642⤵
- Program crash
PID:4292
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 540 -s 8042⤵
- Program crash
PID:1432
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 540 -s 8162⤵
- Program crash
PID:3980
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 540 -s 8482⤵
- Program crash
PID:3300
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 540 -s 9282⤵
- Program crash
PID:1200
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 540 -s 9402⤵
- Program crash
PID:2256
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 540 -s 10442⤵
- Program crash
PID:3284
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 540 -s 15842⤵
- Program crash
PID:3804
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c taskkill /im "77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45.exe" /f & erase "C:\Users\Admin\AppData\Local\Temp\77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45.exe" & exit2⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3988 -
C:\Windows\SysWOW64\taskkill.exetaskkill /im "77f56b5c959a898b785240e63ff4381a86fd639555092a1bed23ff0eb02e4f45.exe" /f3⤵
- System Location Discovery: System Language Discovery
- Kills process with taskkill
- Suspicious use of AdjustPrivilegeToken
PID:3264
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 540 -s 4922⤵
- Program crash
PID:4396
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 540 -ip 5401⤵PID:2112
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 540 -ip 5401⤵PID:4036
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 540 -ip 5401⤵PID:1928
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 496 -p 540 -ip 5401⤵PID:4568
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 540 -ip 5401⤵PID:3000
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 540 -ip 5401⤵PID:3908
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 376 -p 540 -ip 5401⤵PID:2248
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 488 -p 540 -ip 5401⤵PID:4536
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 536 -p 540 -ip 5401⤵PID:4356
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 396 -p 540 -ip 5401⤵PID:1324
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1B
MD5cfcd208495d565ef66e7dff9f98764da
SHA1b6589fc6ab0dc82cf12099d1c2d40ab994e8410c
SHA2565feceb66ffc86f38d952786c6d696c79c2dbc239dd4e91b46729d73a27fb57e9
SHA51231bca02094eb78126a517b206a88c73cfa9ec6f704c7030d18212cace820f025f00bf0ea68dbf3f3a5436ca63b53bf7bf80ad8d5de7d8359d0b7fed9dbc3ab99